Labview programming to convert weight measurement into mass flow

[ekoharsono]

Hello,

I have continuous analog input measurement from weight scale. I want to convert the weight measurement to mass flow measurement.

E.g.:

1st minute weight measurement: 200kg

2nd minute weight measurement: 300 kg

3rd minute weight measurement: 350 kg

and so on.

I want to convert those weight into mass flow which is

1st mass flow:(300-200)keg/1min = 100kg/min

2nd mass flow: (350-300)kg/1 min = 50 kg/min

and so on.

So the weight and should be updated every minute, whatever the time value of while loop iteration.

Can somebody give solution of this case with labview programming? (structure in block diagram)

Thanks,

Eko

[GerdW]

Hi Eko,

is this some kind of homework?

Well I suggest to use two shift registers to hold mass and time, then two subtract nodes to get the difference of current and old vlaue for both and finally a simple divide to get the mass flow...

Look here to get the basics!

[jonh1992]

Hi Eko,

I know this is a bit of a long shot... But is there any chance that you still have the VI file for this. I am currently doing a similar project to this, and it'd be great if I could compare my VI with yours, as not all aspects of mine are working right now.

Thanks,

Jon

[GerdW]

Hi Jon,

why don't you attach your VI here so we take a look at it to provide suggestions?